Translate the English statement into an inequality.The cost of shoes must be less than $89. (Use the variable c for the cost.)
A. c > 89
B. c < 89
C. c ? 89
D. c ? 89
Answer: B
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Solve the system.
- y = -2x2 + 2y = 91
A. (0, 45.5) B. (9, 5) C. (9, 5), (-9, 5) D. (3, 25)
Use the vertical-line test to determine whether the graph represents a function.
A. Yes B. No
Solve the triangle. 
A. B = 45°, a = 4.4, c = 6.2 B. B = 40°, a = 6.2, c = 4.4 C. B = 40°, a = 4.4, c = 6.2 D. B = 35°, a = 6.2, c = 4.4
Solve the problem.The cost of owning a home includes both fixed costs and variable utility costs. Assume that it costs $3644 per month for mortgage and insurance payments and it costs an average of $1.57 per unit for natural gas, electricity, and water usage. Determine a linear equation that computes the annual cost of owning this home if x utility units are used.
A. y = -1.57x + 3644 B. y = 1.57x + 3644 C. y = -1.57x + 43,728 D. y = 1.57x + 43,728